Update the state of the toolbar after ui* children have been removed *Figure.cc (Figure::EventNotifyAfter): update the state of the toolbar after an ui* children is removed e.g. by clf.

function x = varg_nest2
  [a, b] = f;
  x = a;

  if nargout == 1
    x = a;
  endif

  function [a, b] = f
    if nargout == 2
      a = b = 5;
    endif
  endfunction
endfunction